What is transpose?

Question

how to transpose an array

Answer 1

A transpose will swap elements of array based of their indices. So, x[r, c] is reassigned the value of x[c, r]. For example,

if
x = [ [ 1, 2 ] [3, 4] ]

and if
y = transpose(x)

then
y = [ [ 1, 3 ] [2, 4] ]

What is the form of the input and output data for your code?